“The Principle of Good Faith in the Law of the World Trade Organization”

Dr. Roberto Rios-Herran

To Professor Phaedon John Kozyris, with admiration and respect

“The law of justice declares that each one participates in the perfection of the universe and in a happiness of his own in proportion to his own virtue and to the good will he entertains toward the common good.”

Leibniz (On the Ultimate Origin of Things)

  1. Introduction

The process of globalization, i.e. the integration and expansion of various domestic markets into a global market place, creates a need for the development of a uniformed regulatory framework to establish the foundations for this integration and provide for a common set of rules and principles to facilitate this process. This is the environment in which international trade[1] exists.

The World Trade Organization (WTO) provides “the common institutional framework for the conduct of trade relations among its members in matters related to [the WTO] agreements and associated legal instruments included in the Annexes to this agreement.”[2] The WTO follows a “positive harmonization”[3] approach in trying to achieve the uniformed regulatory framework mentioned above (including dispute settlement), which will provide for a level playing field for its members and establish a global marketplace. These are, in broad terms, the aims of the WTO.

The WTO agreements represent legally binding obligations for its members, and are regulated by the general principles of public international law. The WTO rules therefore, cannot be considered as a “self-contained” regime nor be read, “in clinical isolation from Public International Law.” [4] Hence, general principles of public international law regulate the WTO agreements, and these agreements shall be interpreted, “in accordance with customary rules of interpretation of public international law.”[5] This is the nature of WTO law.

In this perspective of things the principle of good faith plays an important role in providing for a standard of conduct to be followed by WTO members in the organization and implementation of their trade activities. The aim of this article is to analyze how this principle is integrated into the law of the WTO, and how it has been interpreted by the Dispute Settlement Body (DSB) of the organization in various cases. It is structured in three parts. The first one provides for a definition of the principle of good faith; the second one analysis the methodology of interpretation of the WTO agreements followed by the DSB; and the third one analyses relevant case law. Concluding remarks are provided at the end of the article.

  1. The Principle of Good faith

Present in virtually all legal systems of the world, good faith is one of the most widely accepted “general principles” of law. Good faith can be defined as:

“the mental and moral state of honest, even if objectively unfounded, conviction as to the truth or falsehood of a proposition or body of opinion, or as to the rectitude or depravity of a line of conduct. One who acts in good faith, so far as the violation of positive law, or even, in certain junctures, of natural law, is concerned, is said to labor under an invincible error, and hence to be guiltless. This consideration is not infrequently applied to determine the degree of right or obligation prevailing in the various forms of human engagements, such as contracts and the law of obligations. In the mater of prescription it is held to be an indispensable requirements whether there be question of acquiring dominion or freeing oneself from a burden.”[6]

In international relations, this universal acceptance of the principle of good faith, along with that of free consent and the Pacta Sunt Servanda rule[7] has been specifically recognized in the Vienna Convention on the Law of Treaties (VCLT)[8], and other international conventions.[9]

Good faith is an element of behavior with a subjective nature, which in turn makes it difficult to prove whether or not this element is present in the behavior of a party to a convention.[10] Honesty and fairness therefore, are two important elements shaping the conduct of States acting in good faith, and their policies shall reflect a level of coherency towards this international law requirement. In this juncture, States acting in good faith are under the obligation, “to refrain from acts calculated to frustrate the objects of the treaty.”[11]Thus, when contracting with each other, it is presumed that States will honor their obligations in good faith and will refrain from imposing unreasonable burdens on one another. Good faith is one generally accepted principle of law in public international law permeating both the standard of conduct of States in their dealings with each other, and the settlement of disputes among them.

The principle of good faith, along with other principles of customary international law, is incorporated in the VCLT, which provides for its use in the following provisions:

-article 26 which provides for the obligation of States to perform in good faith

-article 31 (1) which provides for the interpretation in good faith of international agreements

-article 32 (b) which provides for the recourse to supplementary means of interpretation when the interpretation under article 31 leads to a result which is absurd or unreasonable.

Based on these articles we see that good faith is an obligatory standard of performance for parties to an international convention (article 26), and a guiding principle in interpreting their obligations (articles 31 and 32). In this respect, the only possibility for justifying non performance of obligations under an international convention is when the application of a given treaty is contrary to jus cogens, as per the terms of article 53 of the VCLT.[12] Thus, good faith performance and interpretation of States’ obligations highlights the need for a faithful behavior in the achievement and enforcement of an agreed common purpose. This in turn influences the perception of States of the “rightness” or the “justice” of the resulting international order.[13] Therefore, the principle of good faith regulates the application and implementation of international treaties.

  1. Interpretation of WTO Agreements

The WTO agreements are interpreted by the Dispute Settlement Body (DSB) of the organization fallowing the prescriptions contained in the Understanding on Rules and Procedures Governing the Settlement of Disputes (DSU). In this respect article 1 of the DSU indicates that:

“the rules and procedures of this Understanding shall apply to disputes brought pursuant to the consultation and dispute settlement provisions of the agreements listed in Appendix 1 to this understanding (referred to in this understanding as the “covered agreements”). The rules and procedures of this Understanding shall also apply to consultations and the settlement of disputes between Members [of the WTO] concerning their rights and obligations under the provision of the Agreement Establishing the World Trade Organization (referred to in this Understanding as the “WTO Agreement”) and of this understanding taken in isolation or in combination with any other covered agreement.”

The DSB has the authority to establish panels and a standing Appellate Body (AB) to implement these tasks[14]with respect to the provisions contained in the covered agreements.[15]The dispute settlement system plays a central role in ensuring the stability of the multilateral trading system, and clarifies the extent of obligations of the members of the WTO, preserving their rights and obligations under the covered agreements, and using customary rules of interpretation of public international law for their interpretation. In this respect, article 3 (2) of the DSU indicates that:

“The dispute settlement system of the WTO is a central element in providing security and predictability to the multilateral trading system. The Members recognize that it serves to preserve the rights and obligations of Members under the covered agreements and to clarify the existing provisions of those agreements in accordance with customary rules of interpretation of public international law. Recommendations and rulings of the DSB cannot add to or diminish the rights and obligations provided in the covered agreements.”

The concept of “security and predictability” has already been the object of definition in some cases. In this respect the AB in Japan – Alcoholic Beverages II indicated that the rules of the WTO are, “reliable, comprehensible and enforceable…. [and that they] are not so rigid or so inflexible as not to leave room from reasoned judgments in confronting the endless and ever changing ebb and flow of real facts in real cases in the real world. They will served the multilateral trading system best if they are interpreted with that in mind.”[16]In this juncture, WTO members acting in good faith should refrain from taking actions that will jeopardize the “security and predictability” of the multilateral trading system, and promptly comply with the recommendations of the DSB.[17]

The DSB follows a “textual” interpretation[18] of the WTO agreements in which the text is presumed to represent the final and most reliable expression of the intent of the parties, leaving the possibility to have recourse to other supplementary means of interpretation only when the text leaves a question unanswered. This is consistent with the provisions included in the VCLT articles 31 and 32, which represent the “customary rules of interpretation of public international law” mentioned in article 3 (2) of the DSU. In this perspective, the expressed intent of the parties included in the text prevails over other “subjective” interpretations. These articles read as follows:

Article 31
General rule of interpretation

1. A treaty shall be interpreted in good faith in accordance with the ordinary meaning to be given to the terms of the treaty in their context and in the light of its object and purpose.
2. The context for the purpose of the interpretation of a treaty shall comprise, in addition to the text, including its preamble and annexes:

(a) any agreement relating to the treaty which was made between all the parties in connection with the conclusion of the treaty;

(b) any instrument which was made by one or more parties in connection with the conclusion of the treaty and accepted by the other parties as an instrument related to the treaty.

3. There shall be taken into account, together with the context:

(a) any subsequent agreement between the parties regarding the interpretation of the treaty or the application of its provisions;

(b) any subsequent practice in the application of the treaty which establishes the agreement of the parties regarding its interpretation;

(c) any relevant rules of international law applicable in the relations between the parties.

4. A special meaning shall be given to a term if it is established that the parties so intended.

Article 32
Supplementary means of interpretation

Recourse may be had to supplementary means of interpretation, including the preparatory work of the treaty and the circumstances of its conclusion, in order to confirm the meaning resulting from the application of article 31, or to determine the meaning when the interpretation according to article 31:

(a) leaves the meaning ambiguous or obscure; or

(b) leads to a result which is manifestly absurd or unreasonable.

The AB has reaffirmed the applicability of these provisions when interpreting the WTO agreements, indicating that the general rule referred to in article 31 constitute part of the “customary rules of interpretation of public international law”, which the DSB has to apply as per the indications in this respect contained in article 3 (2) of the DSU.[19] Regarding the textual interpretation of the WTO agreements, the AB has indicated that:

“article 31 of the Vienna Convention provides that the words of the treaty form the foundation for the interpretative process; interpretation must be based above all on the text of the treaty.”[20]

This approach to interpreting the WTO has been further develop by the DSB in subsequent cases, providing as a general rule that:

“a treaty interpreter must begin with, and focus upon, the text of the particular provision to be interpreted. It is in the words constituting that provision, read in their context, that the object and purpose of the states parties to the treaty must first be sought. Where the meaning imparted by the text itself is equivocal or inconclusive, or where confirmation of the correctness of the reading of the text itself is desired, light from the object and purpose of the treaty as a whole may usually be sought.”[21]

Additionally, the various elements contained in article 31, e.g. context, object and purpose, instruments made in connection with the agreement, must be applied as a whole, In US – Section 301, the Panel concluded that the elements of article 31 of the VCLT, “are to be viewed as one holistic rule of interpretation rather than a sequence of separate tests to be applied in a hierarchical order.”[22] A similar conclusion was reached by the Panel in EC – Asbestos, “to the extent that Article 31 of the Vienna Convention contains a single rule of interpretation and not a number of alternative rules, the various criteria in the article should be considered as forming part of a whole.”[23]

An important corollary of article 31, which also reflects the good faith element conditioning the DSB interpretation of the WTO agreements is the principle of effective treaty interpretation[24], according to which a treaty should not be interpreted in such a way as to lead to a result which is manifestly absurd or unreasonable. In US - Gasoline, the AB indicated in this respect that:

“One of the corollaries of the “general rule of interpretation” in the Vienna Convention is that interpretation must give meaning and effect to all the terms of a treaty. An interpreter is not free to adopt a reading that would result in reducing whole clauses or paragraphs of a treaty to redundancy or inutility.”[25]

The general methodology for interpreting the WTO agreements by the DSB has been the object of substantive jurisprudence over the last 10 years. The systematic application of the VCLT rule has brought a standardized approach of interpretation which has contributed to the legitimacy and strengthening of the DSU and its objectives of providing stability and predictability to the multilateral trading system.

  1. Case Law on Good Faith

The principle of good faith has been the object of analysis in various cases decided by the DSB. WTO members are expected to comply with their obligations in good faith, and this element is assumed to be present in the conduct of WTO members. In this respect in a landmark case (EC – Sardines) the AB concluded that:

“… We must assume that Members of the WTO will abide by their treaty obligations in good faith, as required by the principle of Pacta Sunt Servanda articulated in Article 26 of the Vienna Convention. And always in dispute settlement, every Member of the WTO must assume the good faith of every other Member.” [26]

It is therefore necessary when analyzing the performance of a Member to assume that the good faith element is present in its actions. But how is this principle structured? It has been suggested that good faith is formed by two important elements: the doctrine of the abuse of rights and the protection of legitimate expectations, which together, “heighten a legal system’s legitimacy by placing each participant on equal ground.” [27]While the use of the doctrine of abuse of rights (“abus de droit) has been accepted in WTO jurisprudence and interpretation methodology, the principle of protection of legitimate expectations has not.

In the Shrimp – Turtle Case, the AB, referring to the principle of good faith, indicated that:

“as once a general principle of law and a general principle of international law, controls the exercise of rights by states. One application of this general principle, the application widely known as the doctrine of abus de droit, prohibits the abusive exercise of state’s rights and enjoins that whatever the assertion of a right impinge on the field covered by a treaty obligation, it must be exercised bona fide, that is to say, reasonably.”[28]

Regarding the application of the principle of protection of legitimate expectations, the available case law against its use is extensive, mainly because its use runs contrary to the textual approach methodology when interpreting the WTO agreements fallowed by the AB, as indicated in the provisions of Article 31 of the VCLT. The use of this principle in dispute settlement will in fact inevitably incorporate concepts not included in the WTO agreements by panelists, fact that will go contrary to the specific provision of article 3(2) of the DSU, which provides that, “Recommendations and rulings of the DSB cannot add to or diminish the rights and obligations provided in the covered agreements.” In this respect, in Chile – alcoholic beverages the AB indicated that :

“In this dispute, while we have rejected certain of the factors relied upon by the Panel, we have found that the Panel’s legal conclusions are not tainted by any reversible error of law. In these circumstances, we do not consider that the Panel has added to the rights or obligations of any Member of the WTO. Moreover, we have difficulty in envisaging circumstances in which a panel could add to the rights and obligations of a Member of the WTO if its conclusions reflected a correct interpretation and application of provisions of the covered agreements.”[29]

One can clearly see then that a textual interpretation of the WTO agreements is required to ensure that the main elements incorporated in these agreements are protected (including good faith), and that the intentions of the parties, when entering into these agreements, is respected. Regarding this issue of interpretation, in India– Patents the AB indicated that: